How to find if a string is in a list of strings in a DOS batch file
batch-file, dos, string
Solution
You may also use the array approach:
setlocal EnableDelayedExpansion
set arg[1]=validArgument1
set arg[2]=validArgument2
set arg[3]=validArgument3
for /L %%i in (1,1,3) do if /I "%1" equ "!arg[%%i]!" SET "ARG=!arg[%%i]!"
In my opinion, this method is clearer and simpler to manage with multiple options. For example, you may create the array of valid arguments this way:
set i=0
for %%a in (validArgument1 validArgument2 validArgument3) do (
set /A i+=1
set arg[!i!]=%%a
)
Another possibility is to define a variable for each valid argument:
for %%a in (validArgument1 validArgument2 validArgument3) do set %%a=1
... and then just check the parameter this way:
if defined %1 (
echo %1 is valid option...
SET ARG=%1
)
Problem
I'd like to check if an argument to a batch file is valid based on a list of strings. For example: ``` IF %1 IN validArgument1, validArgument2, validArgument3 SET ARG=%1 ``` This would set ARG to one of the valid arguments only if it matched. Ideally case insensitively.